If you need any sort of technical diagram, online image stocks are the best place to start, of which Google Images is most likely to have what you want. I just typed "Ramsey Bidirectional Winch Motor Writing Diagram" into Google Images and it brought this up:
If you need help regarding spare parts, or you have lost the user's manual, or just need repair advice, here are some other online sites you could try:
- dbelectrical.com - Ramsey winch stockists, with a customer service helpline on (800) 753-2242
- masubast.tumblr.com - advice on where to buy Ramsey winch spare parts
- frontrange4x4.com - one of the forum posts (check under 'winches' has an extensive list of where to go online for advice and repairs, also has scans of magazine reviews of winches
- docstoc.com - has downloadable PDFs of winch patents, including diagrams.
Plus, there are stockists on the usual auctions sites, such as eBay. This YouTube not only stocks Ramsey spare parts, but also made a film advising on Ramsey winch repairs: